[Plugin] OBJexporter v3.0 20130131

Re: [Plugin] OBJexporter v3.0 20130131

Postby Kaylle » Tue Mar 31, 2015 10:38 am

I get this error:


I did this:
Windows > Preferences > Extensions > Install Extension...
I selected OBJexporter_v3.0.rbz then restarted Sketchup 8.0.11752 (free version) and I got that error.
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Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Fri Apr 03, 2015 7:32 pm

There is an important system file, named sketchup.rb which is shipped with SketchUp.
It is in the ../Tools/ subfolder inside the main 'SketchUp' folder.

If you have somehow deleted it nothing will load if it requires it.

In v8 you should have at least these files in ../Tools/
sketchup.rb
extensions.rb
langhandler.rb

There might be other files too...

These files should NEVER be found in the ../Plugins/ folder !

The set up with newer SketchUp versions is slightly different, but the same principles apply...
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Kaylle » Sat Apr 04, 2015 5:18 am

Thanks, a few folders got jumbled and files were accidentally duplicated (or got corrupted) that's why it didn't work.
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Kaylle 
 

Re: [Plugin] OBJexporter v3.0 20130131

Postby StarLand » Sat May 09, 2015 3:46 pm

I have download so I'll export my models as test.
I hope the results are good. :)

edit:

It's works fine.
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Re: [Plugin] OBJexporter v3.0 20130131

Postby meff1091 » Sun Mar 20, 2016 11:29 am

i am using your objexporter to export my models to pepakura to make paper model of them. i am having this issue:
if my model has different coloured faces like this:
dd.jpg

, exported obj file look like this in pepakura:
Adsız.jpg


and i am sure all edges connected. if i export kmz4 with skp6, i have no problems with pepakura. but you know sketchup 2016 is newer and faster than old one. i want to use the 2016 but this objexporting issue botters me. any ideas on this?
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Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Fri Mar 25, 2016 7:08 pm

OBJ exporters typically triangulate the 'mesh'.
It's hard to see exactly what the problem is in 'Pepakura' ??
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Re: [Plugin] OBJexporter v3.0 20130131

Postby myreiko » Fri Aug 19, 2016 8:40 am

ty
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Sun Jul 16, 2017 9:14 pm

I have the problem that the OBJexporter sometime produces shading error like this:



Any suggestions how i can prevent this?
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Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Mon Jul 17, 2017 11:13 am

A little more info about what we are looking at, perhaps a SKP exhibiting the problem, or an OBJ/MTL/Textures ZIP ?

Otherwise it'll involve wild guesses...
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Mon Jul 17, 2017 10:03 pm

The issue can be easily reproduced.

Build a face. Place two other faces on it an put another material onto these two faces.



Save and export as .obj-file.

Import in Blender.
After remove doubles and limited dissolve you can see normals not standing in 90° on the face, which are causing these shading errors, i guess.



If needed, i can upload the used files.

best regards
Christian
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Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Mon Jul 17, 2017 10:24 pm

Some examples files would be a very good idea - use ZIP for those non-compliant file-types...
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Tue Jul 18, 2017 5:48 am

Here are the test-files.
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Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Tue Jul 18, 2017 12:26 pm

The geometry is triangulated in the processing.
With this exporter and the Pro exporter as well.
Giving the face distortion you see.
It's not an option to NOT triangulate [unlike Pro exporter]
With no triangulation the distortion is not seen.
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Tue Jul 18, 2017 1:27 pm

This means no chance to solve to problem?
Using the .dae export the geometry is also triangulated but there is no face distorsion.
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Saturo 
 

Re: [Plugin] OBJexporter v3.0 20130131

Postby TIG » Tue Jul 18, 2017 1:41 pm

This is an old plugin which is unlikely to be developed further.
Since the Pro exporter exhibits the same distortion issue with triangulated faces I expect it would not be easily solved.
Using the Pro exporter without triangulation sidesteps the issue but of course you may need triangulated faces for other purposes.
Why can't you use the native DAE Collada exporter ?
If that avoids the issue and you need an OBJ for some other reason does it export from Blender without distortion ?
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Tue Jul 18, 2017 1:50 pm

The Collade exporter works fine if the model has no texture.
I'm looking for a way to export objexts with texture and import it to blender.

When i use the .dae fomat the texture behaviour is very strang for example: textures dissapear when i join objects.

I was very happy when i found die OBJexporter because it exports the modell and texture very well. Unfortunally these distorsions make it unuseable.

Maybe i have to test the .stl exporter too.
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Re: [Plugin] OBJexporter v3.0 20130131

Postby Saturo » Tue Jul 18, 2017 5:36 pm

I build a model in sketchup. Then i export it as .dae file, import it in blender and use remove doubles and limited dissolve. After that i texturize the model.
In this step, I often find minor errors on the model which i can't repair in blender.
This means back to sketchup, fix the problem, export as .dae an so on.

Therefore i had the idea to apply the texture directly in sketchup where i directly can fix these minor errors and afterwards export it to blender. But in this case i had the problem that the texture in blender dissappears when i join objects to do remove doubles and limited resolve just once. Without that step ich have to do remove doubles and limited resolve more than a hundred times

This is why i'm looking for other ways to export the textured modell to blender.
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